The April 2014 update of Apple's 13" MacBook Air features refreshed dual-core i5 and i7 processors, plus slightly increased battery performance.

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My MacBook Air has no output sound

my MacBook Air has no output sound, I have tried resetting the PRam, SMC and updating os, when I done a diagnostics on it error code VFF001

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Try going into Settings to unclick the mute button. If that doesn't work, try using the software to Restart. If that doesn't work, try doing a manual Restart to get into Settings. When I upgraded my MacBook Air with the latest OS, it dropped the 123 password & went back to the original owner password, so I can't get past the login :-/.


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Try holding down the option (alt) key and clicking the speaker icon in the top bar. Then click by output device the Internal Speaker.

I can't promise it works but it's worth trying.


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